INSTALLATION
Continued
4.Apply pipe joint sealant lightly to male threads of gas connector attached to flexible gas line/ equipment shutoff valve (see Figure 26).
5.Check all gas connections for leaks. See Checking Gas Connections.
6.Replace branch support back into fireplace. Feed flexible gas line into fireplace base area while replacing branch support. Make sure the entire flexible gas line is in fireplace base area. Reattach branch support to fireplace with screws removed in step 2 on page 17.
To Fireplace | Equipment Shutoff |
Gas Regulator | Valve Provided by |
| Installer |
PRESSURE TESTING GAS SUPPLY PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. | Disconnect appliance with its appliance main |
| gas valve (control valve) and equipment |
| shutoff valve from gas supply piping system. |
| Pressures in excess of 1/2 psig will damage |
| heater regulator. |
2. | Cap off open end of gas pipe where equipment |
| shutoff valve was connected. |
3. | Pressurize supply piping system by either |
| opening propane/LP supply tank valve for |
| propane/LP gas or opening main gas valve |
| located on or near gas meter for natural gas, |
| or using compressed air. |
4. | Check all joints of gas supply piping system. |
| Apply a noncorrosive leak detection fluid to |
Flexible Gas Line from 
Fireplace Gas Regulator Provided with Fireplace
PROPANE/LP
To External
Regulator
NATURAL
To Gas Supply
| gas joints. Bubbles forming show a leak. |
5. | Correct all leaks at once. |
6. | Reconnect heater and equipment shutoff valve |
| to gas supply. Check reconnected fittings for |
| leaks. |
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
Figure 26 - Attaching Flexible Gas Line
to Equipment Shutoff Valve
CHECKING GAS CONNECTIONS
WARNING: Test allgas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detec- tion fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.
CAUTION: Make sure exter- nal regulator has been installed between propane/LPsupply and fireplace. See guidelines under Connecting to Gas Supply, page 16.
1.Close equipment shutoff valve (see Fig- ure 27).
2.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.
3.Check all joints from gas meter for natural or propane/LP supply to equipment shutoff valve (see Figures 28 and 29, page 19). Ap- ply a noncorrosive leak detection fluid to gas joints. Bubbles forming show a leak.
4.Correct all leaks at once.
Equipment | Open | |
Shutoff | ||
| ||
Valve |
| |
| Closed | |
Figure 27 - Equipment Shutoff Valve | ||
18 | www.desatech.com |
